knocks
n.
短促的敲打（声）( knock的名词复数 );
爆震声;
敲击声;
敲门（或窗等）声;
v.
敲，击，打( knock的第三人称单数 );
（心）怦怦跳;
把…撞击成（某种状态）;
批评;
例句:
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This design knocks everything else into a cocked hat.
这一设计令其他作品相形见绌。
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Ignoring feelings of tiredness knocks our body clocks out of kilter.
忽视疲劳感会打乱我们的生物钟。
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Life knocks the sauciness out of us soon enough.
来自NEWYORKER
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This kind of news knocks you back a bit, doesn't it?
这种消息使你有点儿吃惊, 是 吗 ?
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Opportunity never knocks twice at any man's door.
来自Proverb
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When the post knocks and the letter comes.
来自V. Woolf